Mio Tanaka (田中 美央, Tanaka Miō, born July 4, 1974) is a Japanese actor and voice actor (seiyuu) born in Kita Ward, Kobe City, Hyogo Prefecture. He is affiliated with Empathy.

After graduating from Department of Performing Arts at Osaka University of Arts, he joined the theater company Haiyuza, where he stayed until February 2022. He is also the bassist for the irregularly active band Air Language. His vocal range is high baritone.